| 年度 | 实际值 |
|---|---|
| 1995 | 2783 |
| 1996 | 3729 |
| 1997 | 10140 |
| 1998 | 13611 |
| 1999 | 17656 |
| 2000 | 19036 |
| 2001 | 39059 |
| 2002 | 32168 |
| 2003 | 39040 |
| 2004 | 28309 |
| 2005 | 35984 |
| 2006 | 89512 |
| 2007 | 87139 |
| 2008 | 67714 |
| 2009 | |
| 2010 | 37881 |
| 2011 | 137982 |
| 2012 | 106327 |
| 2013 | 121839 |
| 2014 | 40189 |
| 2015 | 25634 |
| 2016 | 63045 |
| 2017 | 37218 |
| 2018 | 34777 |